Good point, Zuzu. I often upload a photo to an initial post directly from my computer so it will appear as a thumbnail to the thread. I do this because It's my understanding (?) that if I upload the same photo directly from the database, it doesn't show up as a thumbnail to the thread.
But, on that note, could a message pop up that the photo is already in the database? I know I get this when I try to upload a picture from my computer which is already in the database...?